Process for curling hair yarn and the like.



G. CROSSLAND.

PROCESS FOR CURLING HAIR YARN AND THE LIKE. APPLICATION FILED FEB. 10. I915- Patented Dec. 7, 1915.

WITNESSES: IN V EN TOR.

A TTORNE Y.

COLUMBIA PLANOGRAPH 50., WASHINGTON, n. c.

GEORGE CRQSSLAND, 0F

"WORCESTER,

ItIASSAGI-IUSETTS.

PROCESS FQR CURLING HAIR YARN AND THE LIKE.

Application filed February 10, 1915.

To all whom it may concern:

Be it known that I, Gnonen GnossLAND, a citizen of the United States, residing at Worcester, in the county of Worcester and State of Massachusetts, have invented a new and useful Process for Curling Hair Yarn and the like, of which the following is a specification.

My invention relates to a process for curling yarns made from the hair or" Angora goats or like animals.

The object of my invention is to provide a process whereby the yarn to be curled may be treated and in such a manner as to eliminate unnecessary twisting and untwisting.

With these and other objects in view my invention consists in a certain process hereinafter described and more specifically pointed out in the appended claim.

Referring to the drawing: Figure 1 is a side view of a core thread showing the hair yarn wound thereon; Fig. 2 is an end View of Fig. l. Fig. 3 shows one of the hair yarns after the process of being curled.

in the accompanying drawing A is a core thread, of cotton or other vegetable fiber, having one or more strands of yarn B and C wound thereon, (Figs. 1 and 2), and in such a manner as to eliminate any twist in said yarns B and C. The yarn is then deposited in a receptacle, preferably a box or basket made of copper and of an open or mesh construction, within which the yarn is securely retained. lhe copper box or basket is then deposited in a vat or like receptacle specification of Letters Patent.

Patented Dec. "3, 31915.

Serial No. 7,439.

and covered with water; a suitable percentage of sulfuric acid or other suitable carbonizing agent is introduced into the water, in the vat, at a subsequent period in the operation; the liquid and yarn are then boiled continuously for several hours after which the liquid is allowed to drain from said yarn; the yarn is then steamed under pressure, or dried at a temperature high enough to effect the carbonization of the vegetable core A that is within the wound or curled hair yarn B and C. The result is that the core thread A is destroyed by the above mentioned process and the hair yarn B or C, wound around said core thread A, is left free and curled (Fig. 8) and is now ready for use.

Having thus described my invention what I claim is The process of curling hair yarn or like material whereby the hair yarn is wound around a core thread of cotton, vegetable or soluble material, after which the hair yarn and core thread are treated in such a manner as to dissolve or destroy the core thread and retain the hair yarn in a curled state, tree from twist and ready for use.

in testimony whereof I have hereunto set my hand, in the presence of two subscribing witnesses.

GEORGE GROSSLAND.

Witnesses EDWIN G. NORMAN, ERNEST R. LLEwnLLYN.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G. 

